Contents
Agenda/Minutes
CRY+VIS Interface Meeting
Date: 2023/8/18 13:00-13:38
Participants: Takahashi, Yokozawa, Uchiyama, Akutsu, Ushiba, Aso
Suspensions
- Type-A: Investigation of the ITMY oscillation. Height adjustment in IX, IY, and EY on 8/7,18. Update of the local control (V3 PD in EY is not fine). Test of the IP control with ACC in IY.
- Type-B: Measurement of the DAC noise in SRM. Measurement on the sensor correction in SR2.
- Type-Bp: Measurement for the optimization of damping control in PR2.
- Type-C: Health check of the IMMT2 suspension.
Other items
- Oplev: Investigation of the MNV Oplev in EY.
- ACC: Test of the IP control with ACCs in IY.
- Commissioning:
- Vacuum system: ISP trouble. ISPs were switched to TMPs in Y-arm. The temperature of the duct shield in EX increased. Turned on TMPs around EX. Consider inter lock of GVs.
- Heater control:
- TMS:
Post O4a
- Measurements of the DAC noise: Type-C.
- Measurements on the sensor correction in SR2: Performed on 8/15.
- Optimization of the damping control in PRs: Measurements 2 days, Test 3 days.
- IP control with the ACCs: One more test is necessary.
- In-vacuum accelerometer for IOO: Leak test of the pod is planed in early September.
Hight adjustments of Type-A in the cooling: The procedure.
- Temperature control for the Oplev: Installed the heater controller to IYC. EXC should be checked again. Prepare for IXC and EYC.
- TM cooling.
- IM heater.
- Summary of cooling.
Discussion
VIS Meeting
Date: 2023/8/18 10:0010:45
Participants: Takahashi, Mitsuhashi, Shibai, Ushiba, Tanaka
Summary Report
Type-A
- Height adjustment in IX, IY, and EY on 8/7.
- Test of the IP control with ACC in IY.
Type-B
- Measurement on the sensor correction in SR2.
Type-Bp
- Measurement for the optimization of damping control in PR2.
Type-C
- Health check of the IMMT2 suspension.
- Damping of the OMC suspension.
- Prototype test of the blade damper.
- Design of the flexible pendulum damper.
Electronics
Control
R&D
- TAMA-SAS experiment: IP control.
Schedule
- TAMA-SAS experiment.
- Test of the OMC damper.
Toward O5
Discussion
Next meeting
- 2023/9/1 10:00-